US20100259083A1 - Dynamic orthopaedic chair - Google Patents
Dynamic orthopaedic chair Download PDFInfo
- Publication number
- US20100259083A1 US20100259083A1 US12/759,446 US75944610A US2010259083A1 US 20100259083 A1 US20100259083 A1 US 20100259083A1 US 75944610 A US75944610 A US 75944610A US 2010259083 A1 US2010259083 A1 US 2010259083A1
- Authority
- US
- United States
- Prior art keywords
- chair
- seating platform
- dynamic
- dynamic seating
- platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 8
- 210000003205 muscle Anatomy 0.000 claims description 6
- 210000001015 abdomen Anatomy 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 230000003319 supportive effect Effects 0.000 description 4
- 210000001364 upper extremity Anatomy 0.000 description 4
- 230000007850 degeneration Effects 0.000 description 3
- 230000037237 body shape Effects 0.000 description 2
- 210000004705 lumbosacral region Anatomy 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 208000008035 Back Pain Diseases 0.000 description 1
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000276 sedentary effect Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C9/00—Stools for specified purposes
- A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
Definitions
- This invention relates generally to a novel orthopaedic chair; and more particularly to a functionally dynamic orthopaedic chair with an unstable or active seating platform.
- a functionally dynamic orthopaedic chair designed to engage the muscles in the back and abdomen to actively support the upper body of a seated portion.
- the orthopaedic chair of the current invention provides an unstable seating platform.
- the orthopaedic chair includes a base portion designed to stably engage the floor and an unstable seating portion designed to movably engage the base portion.
- the unstable seating portion may be at least partially formed of a partial hemisphere that movably sits within a cooperative hemispherical bowl or depression in the top of the base portion such that the unstable seating portion may rotate and pivot freely within the base portion.
- the cooperative surfaces of the base portion and the seating portion of the chair are surface treated with a material having a low coefficient of friction, such as a metallic surface coated with a gel or other lubricant.
- the unstable seating platform is provided with a retaining rim to limit the movement of the seating platform in any direction.
- the unstable seating platform may removably rest within the base portion or may be attached or tethered to the base portion.
- the unstable seating platform comprises an elongated body having a partially hemispherical portion designed to cooperatively engage the base of the chair and a seating portion at the other end.
- the body of the chair is designed such that it has an elongated vertical axis thereby providing an unstable seating platform that requires optimal alignment of the spine while the person is seated.
- the seating surface of the unstable seating platform is formed as a partial hemisphere.
- the chair further comprises an elongated armature designed to engage the lower back in a non-supportive manner as a lumbar reminder.
- the chair furthers includes arm supports.
- the various components of the chair are adjustable such that seating position may be tailored to fit the specific height and body shape of the user.
- one or more of the seating platform, lumbar reminder and arm supports may be adjusted in one or more dimensions.
- FIG. 1 provides a schematic of an exemplary embodiment of an orthopaedic chair in accordance with the current invention.
- FIG. 2 provides a schematic of a second exemplary embodiment of an orthopaedic chair in accordance with the current invention.
- the current invention is directed to a functionally dynamic orthopaedic chair designed to engage the muscles in the back and abdomen to actively support the upper body of a seated portion.
- the orthopaedic chair of the current invention is based on the observation that the only structure connecting a person's upper extremity to their pelvis is the musculature in the core of the body (e.g., abdominal, glutei and Para spinal muscles) and the spine. If the musculature of the body is not engaged in supporting the upper extremities, then all of the stress exerted by the upper extremities will be translated through the spine, and specifically through the lower lumbar vertebral bodies at their connection to the sacrum. This in turn can create excessive wear and tear on these vertebral bodies and can lead to early degeneration of the lower lumbar spine.
- the orthopaedic chair of the current invention addresses this issue by requiring that a seated person actively and dynamically support their upper bodies while seated.
- the chair of the current invention is designed such that the core musculature must be actively engaged while seated.
- the chair of the invention is provided with an unstable or dynamic seating platform, i.e., a seating platform which is independently movable in several dimensions such that to stabilize the seating platform the musculature of the body, and in particular the core, must be utilized.
- FIG. 1 provides a schematic diagram of one exemplary embodiment of an orthopaedic chair in accordance with the current invention.
- the chair ( 10 ) generally comprises a base portion ( 12 ), which provides a stable connection to the floor, and an unstable or dynamic seating platform ( 14 ).
- the dynamic seating platform ( 14 ) is formed as a hemisphere that movably sits within a cooperative hemispherical bowl. ( 16 ) or depression in the top of the base such that the dynamic seating portion may rotate and pivot freely within the base portion in any direction.
- the base and seating platform of the chair may be made of any suitable material, such as, for example, wood, metal, plastic, etc.
- the cooperative surfaces of the base portion and the seating portion of the chair are preferably made of or surface treated with at least one material having a low coefficient of friction to improve the mobility of the seating platform relative to the chair base.
- the cooperative surfaces of the seating platform and the chair base are made of a metallic or plastic material and are further coated with a gel or other lubricant.
- the seat may take the form of a standard contoured, padded leather or cloth cushion seat attached atop the hemispherical seating platform base shown in FIG. 1 .
- this safety retaining element takes the form of a rim that runs about the circumference of the hemispherical seating platform and overlaps the base of the chair to limit the extent of movement of the seating platform relative to the base.
- a circumferential rim is shown in FIG.
- this safety retaining element may take other forms, such as a plurality of tabs, pins or other projections set at intervals around the circumference of the seating platform or the cooperative platform ( 16 ) of the base ( 12 ) of the chair.
- the seating platform could be tethered or otherwise attached to the base of the chair externally or internally to prevent excessive movement. Such a tether may also prevent removal of the seating platform from the base of the chair if desired.
- the unstable platform may take any form such that the musculature of the core of the body is actively engaged to maintain a neutral seating position and that the movement of the seating platform is constrained to prevent the user from falling off the platform.
- the chair of the current invention may also include a number of other optional structures.
- the chair further comprises an elongated armature ( 20 ) attached to the base portion of the chair and designed to engage the lower back in a non-supportive manner as a lumbar reminder.
- armature 20
- the lumbar reminder may take the form of any non-supportive armature or element suitable to help maintain proper posture by preventing the seated person from slouching.
- the chair may further include arm rests (not shown) similarly attached to the stable base of any shape or size suitable to provide support for the seated person's arms.
- the various components of the chair are adjustable such that seating position may be tailored to fit the specific height and body shape of the user.
- one or more of the seating platform, lumbar reminder and arm supports may be adjusted in one or more dimensions to provide a better seating position for the user.
- FIG. 1 provides one exemplary embodiment of the invention.
- the chair takes the form of two separate pieces, a stable base platform ( 12 ) and a dynamic/unstable seating platform ( 14 ).
- the unstable seating platform takes the form of a hemispherical ball with bottom and top halves separated by a retaining safety ring ( 18 ).
- the bottom half of the hemispherical ball rests within and engages a cooperative hemispherical bowl. ( 16 ) or depression formed in the top surface of the base of the chair.
- the surfaces of the bottom half of the hemispherical seating platform and hemispherical depression are formed with a metalized surface, and preferably the metalized surface are coated with a low coefficient of friction gel or lubricant material.
- the retaining safety ring runs ( 18 ) around the circumference of the hemispherical seating platform and is dimensioned to overlap the edge of the chair base to limit the movement of the seating platform in any dimension.
- the embodiment shown in FIG. 1 further includes an elongated armature connected ( 20 ) through the chair base and dimensioned to rest against a seated person's lower back to provide a lumbar posture reminder.
- both the base and lumbar reminder are preferably adjustable to ensure the user may assume an optimal seating position.
- FIG. 2 provides a second exemplary embodiment of the invention.
- the dynamic/unstable seating platform ( 22 ) of the chair ( 24 ) comprises an elongated vertical body ( 26 ) having a hemispherical portion ( 28 ) at one end that sits in cooperative engagement with the top of the base portion ( 30 ) of the chair, and a seating portion ( 32 ) at the other end.
- This elongated design requires that not only must the person actively use their muscles to balance, but that the alignment of the spine also be maintained in an optimal alignment.
- the retaining safety element is a ring ( 34 ) that runs about the circumference of the cooperative hemispherical bowl ( 36 ) of the base portion of the chair such that the movement of the seating platform in any dimension is limited to prevent the seating platform from tipping over.
- the base ( 30 ) is preferably adjustable to ensure the user may assume an optimal seating position.
- the embodiment shown in FIG. 2 may also incorporated back and arm posture supports as described previously.
Abstract
Description
- The current application claims priority to U.S. Provisional Application No. 61/168,805, filed Apr. 13, 2009, the disclosure of which is incorporated herein by reference.
- This invention relates generally to a novel orthopaedic chair; and more particularly to a functionally dynamic orthopaedic chair with an unstable or active seating platform.
- Over the past five to six years there has been a marked increase in the number of spinal surgeries performed in the United States. One reason for this increase is that the modern lifestyle is, for the most part, sedentary. In particular, the lifestyles of day-to-day workers and even children now revolve around seated activities, such as, for example, watching TV, using computers, playing video games, etc. Indeed, in the office setting the advent of email communication makes face-to-face interaction and movement around the office unnecessary. As a result, many office workers spend the majority of their working day in a seated position.
- It is well-established that stresses on the human body are best balanced and borne by the spine when a person is in a standing position. When seated more stress is applied to the spine and particularly the lower lumbar spine. This added stress leads to excessive wear and tear on these lower areas of spine, and increased and early degeneration of spine. Indeed, recent literature reports have indicated that the incidence of back pain in adolescent children is as high as 60%.
- To address the rising and chronic spinal degeneration caused by sitting, many companies have introduced chairs that have purported therapeutic orthopaedic benefits. And, indeed, many of these chairs do provide superior back support and improved seating posture. However, while these chairs can improve back posture and position they are passive, that is these chairs support the back such that the seated person is not required to exert the musculature in the back to support their upper bodies. The result is that regardless of how these chairs “support” the back, prolonged use will lead to weakening of the supportive musculature, which in turn means that all of the stress generated by the head, torso and upper extremities will be translated directly to the lower lumber vertebral bodies at their connection to the sacrum.
- Accordingly, a need exists for a new class of chair that is functionally dynamic such that the musculature of the back is actively engaged in supporting a person's upper body while in a seated position.
- Thus, there is provided in accordance with the current invention a functionally dynamic orthopaedic chair designed to engage the muscles in the back and abdomen to actively support the upper body of a seated portion.
- In one exemplary embodiment, the orthopaedic chair of the current invention provides an unstable seating platform.
- In another embodiment, the orthopaedic chair includes a base portion designed to stably engage the floor and an unstable seating portion designed to movably engage the base portion.
- In still another embodiment, the unstable seating portion may be at least partially formed of a partial hemisphere that movably sits within a cooperative hemispherical bowl or depression in the top of the base portion such that the unstable seating portion may rotate and pivot freely within the base portion. In such an embodiment, the cooperative surfaces of the base portion and the seating portion of the chair are surface treated with a material having a low coefficient of friction, such as a metallic surface coated with a gel or other lubricant. In another such embodiment, the unstable seating platform is provided with a retaining rim to limit the movement of the seating platform in any direction.
- In yet another embodiment, the unstable seating platform may removably rest within the base portion or may be attached or tethered to the base portion.
- In still yet another embodiment, the unstable seating platform comprises an elongated body having a partially hemispherical portion designed to cooperatively engage the base of the chair and a seating portion at the other end. In such an embodiment, the body of the chair is designed such that it has an elongated vertical axis thereby providing an unstable seating platform that requires optimal alignment of the spine while the person is seated.
- In still yet another embodiment, the seating surface of the unstable seating platform is formed as a partial hemisphere.
- In still yet another embodiment, the chair further comprises an elongated armature designed to engage the lower back in a non-supportive manner as a lumbar reminder.
- In still yet another embodiment, the chair furthers includes arm supports.
- In still yet another embodiment, the various components of the chair are adjustable such that seating position may be tailored to fit the specific height and body shape of the user. In such an embodiment, for example, one or more of the seating platform, lumbar reminder and arm supports may be adjusted in one or more dimensions.
- The description will be more fully understood with reference to the following figure, which is presented as an exemplary embodiment of the invention and should not be construed as a complete recitation of the scope of the invention, wherein:
-
FIG. 1 provides a schematic of an exemplary embodiment of an orthopaedic chair in accordance with the current invention; and -
FIG. 2 provides a schematic of a second exemplary embodiment of an orthopaedic chair in accordance with the current invention. - The current invention is directed to a functionally dynamic orthopaedic chair designed to engage the muscles in the back and abdomen to actively support the upper body of a seated portion. The orthopaedic chair of the current invention is based on the observation that the only structure connecting a person's upper extremity to their pelvis is the musculature in the core of the body (e.g., abdominal, glutei and Para spinal muscles) and the spine. If the musculature of the body is not engaged in supporting the upper extremities, then all of the stress exerted by the upper extremities will be translated through the spine, and specifically through the lower lumbar vertebral bodies at their connection to the sacrum. This in turn can create excessive wear and tear on these vertebral bodies and can lead to early degeneration of the lower lumbar spine.
- The orthopaedic chair of the current invention addresses this issue by requiring that a seated person actively and dynamically support their upper bodies while seated. In other words, the chair of the current invention is designed such that the core musculature must be actively engaged while seated. To accomplish this, the chair of the invention is provided with an unstable or dynamic seating platform, i.e., a seating platform which is independently movable in several dimensions such that to stabilize the seating platform the musculature of the body, and in particular the core, must be utilized.
-
FIG. 1 provides a schematic diagram of one exemplary embodiment of an orthopaedic chair in accordance with the current invention. As shown, the chair (10) generally comprises a base portion (12), which provides a stable connection to the floor, and an unstable or dynamic seating platform (14). In this embodiment, the dynamic seating platform (14) is formed as a hemisphere that movably sits within a cooperative hemispherical bowl. (16) or depression in the top of the base such that the dynamic seating portion may rotate and pivot freely within the base portion in any direction. Although the base and seating platform of the chair may be made of any suitable material, such as, for example, wood, metal, plastic, etc., in this embodiment of the chair the cooperative surfaces of the base portion and the seating portion of the chair are preferably made of or surface treated with at least one material having a low coefficient of friction to improve the mobility of the seating platform relative to the chair base. For example, in one exemplary embodiment, the cooperative surfaces of the seating platform and the chair base are made of a metallic or plastic material and are further coated with a gel or other lubricant. - The top surface of the seating platform (14), i.e., the portion of the seating platform on which the user sits is shown in
FIG. 1 as also taking the form of a hemisphere. Although such an arrangement does enhance the dynamic action of the chair, it should be understood that any seating surface may be used such that it may be incorporated with the dynamic seating platform base. For example, the seat may take the form of a standard contoured, padded leather or cloth cushion seat attached atop the hemispherical seating platform base shown inFIG. 1 . - Although the above discussion has focused on the top and bottom surfaces of the seating platform and their engagement with the base of the chair, another element of the chair, as shown in
FIG. 1 , is a safety retaining element (18) to prevent excessive movement between the seating platform and the base. In the embodiment shown inFIG. 1 , this safety retaining element takes the form of a rim that runs about the circumference of the hemispherical seating platform and overlaps the base of the chair to limit the extent of movement of the seating platform relative to the base. Although a circumferential rim is shown inFIG. 1 , it should be understood that this safety retaining element may take other forms, such as a plurality of tabs, pins or other projections set at intervals around the circumference of the seating platform or the cooperative platform (16) of the base (12) of the chair. Alternatively, the seating platform could be tethered or otherwise attached to the base of the chair externally or internally to prevent excessive movement. Such a tether may also prevent removal of the seating platform from the base of the chair if desired. - Although one exemplary embodiment of such an unstable platform is discussed above, and with regard to the exemplary embodiments below, it should be understood that the current invention contemplates that the unstable platform may take any form such that the musculature of the core of the body is actively engaged to maintain a neutral seating position and that the movement of the seating platform is constrained to prevent the user from falling off the platform.
- In addition to the core elements of base and dynamic seating platform, the chair of the current invention may also include a number of other optional structures. For example, in the embodiment shown in
FIG. 1 , the chair further comprises an elongated armature (20) attached to the base portion of the chair and designed to engage the lower back in a non-supportive manner as a lumbar reminder. Although one form of such a lumbar reminder is shown in the figure, it should be understood that the lumbar reminder may take the form of any non-supportive armature or element suitable to help maintain proper posture by preventing the seated person from slouching. In another embodiment, the chair may further include arm rests (not shown) similarly attached to the stable base of any shape or size suitable to provide support for the seated person's arms. - Although the above discussion has focused on fixed elements, it should be understood that the various components of the chair are adjustable such that seating position may be tailored to fit the specific height and body shape of the user. In such an embodiment, for example, one or more of the seating platform, lumbar reminder and arm supports may be adjusted in one or more dimensions to provide a better seating position for the user.
- The person skilled in the art will recognize that additional. embodiments according to the invention are contemplated as being within the scope of the foregoing generic disclosure, and no disclaimer is in any way intended by the foregoing, non-limiting examples.
-
FIG. 1 provides one exemplary embodiment of the invention. In this embodiment, the chair takes the form of two separate pieces, a stable base platform (12) and a dynamic/unstable seating platform (14). In this embodiment, the unstable seating platform takes the form of a hemispherical ball with bottom and top halves separated by a retaining safety ring (18). In this embodiment, the bottom half of the hemispherical ball rests within and engages a cooperative hemispherical bowl. (16) or depression formed in the top surface of the base of the chair. The surfaces of the bottom half of the hemispherical seating platform and hemispherical depression are formed with a metalized surface, and preferably the metalized surface are coated with a low coefficient of friction gel or lubricant material. The retaining safety ring runs (18) around the circumference of the hemispherical seating platform and is dimensioned to overlap the edge of the chair base to limit the movement of the seating platform in any dimension. - In addition to the chair base and dynamic seating platform, the embodiment shown in
FIG. 1 further includes an elongated armature connected (20) through the chair base and dimensioned to rest against a seated person's lower back to provide a lumbar posture reminder. Finally, it is noted that in the embodiment shown, both the base and lumbar reminder are preferably adjustable to ensure the user may assume an optimal seating position. -
FIG. 2 provides a second exemplary embodiment of the invention. In this embodiment, the dynamic/unstable seating platform (22) of the chair (24) comprises an elongated vertical body (26) having a hemispherical portion (28) at one end that sits in cooperative engagement with the top of the base portion (30) of the chair, and a seating portion (32) at the other end. This elongated design requires that not only must the person actively use their muscles to balance, but that the alignment of the spine also be maintained in an optimal alignment. In this embodiment, the retaining safety element is a ring (34) that runs about the circumference of the cooperative hemispherical bowl (36) of the base portion of the chair such that the movement of the seating platform in any dimension is limited to prevent the seating platform from tipping over. It is noted that in the embodiment shown, the base (30) is preferably adjustable to ensure the user may assume an optimal seating position. In addition, the embodiment shown inFIG. 2 may also incorporated back and arm posture supports as described previously. - Those skilled in the art will appreciate that the foregoing examples and descriptions of various preferred embodiments of the present invention are merely illustrative of the invention as a whole, and that variations in the steps and various components of the present invention may be made within the spirit and scope of the invention. For example, it will be clear to one skilled in the art that additional alternative configurations or other elements would not affect the improved properties of the orthopaedic chair of the current invention nor render the chair unsuitable for its intended purpose. Accordingly, the present invention is not limited to the specific embodiments described herein but, rather, is defined by the scope of the appended claims.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/759,446 US8231175B2 (en) | 2009-04-13 | 2010-04-13 | Dynamic orthopaedic chair |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16880509P | 2009-04-13 | 2009-04-13 | |
US12/759,446 US8231175B2 (en) | 2009-04-13 | 2010-04-13 | Dynamic orthopaedic chair |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100259083A1 true US20100259083A1 (en) | 2010-10-14 |
US8231175B2 US8231175B2 (en) | 2012-07-31 |
Family
ID=42933791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/759,446 Active 2030-07-25 US8231175B2 (en) | 2009-04-13 | 2010-04-13 | Dynamic orthopaedic chair |
Country Status (1)
Country | Link |
---|---|
US (1) | US8231175B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11596243B2 (en) | 2020-06-17 | 2023-03-07 | Dianna Lynn Roberts | Rocking and bouncing chair |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2547043C2 (en) * | 2009-05-18 | 2015-04-10 | КОРДИО Эль Эль Си | Stationary bicycle with inflatable seat |
US8919881B2 (en) * | 2013-03-15 | 2014-12-30 | Araz Bay | Ergonomic gobelek chair |
US9629465B2 (en) * | 2015-03-18 | 2017-04-25 | Krueger International, Inc. | Lounge chair |
US9398811B1 (en) * | 2015-03-18 | 2016-07-26 | Krueger International, Inc. | Lounge chair |
Citations (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US30706A (en) * | 1860-11-20 | van vlbck | ||
US468398A (en) * | 1892-02-09 | Saddle for bicycles | ||
US605527A (en) * | 1898-06-14 | Robert e | ||
US612580A (en) * | 1898-10-18 | Chair | ||
US619596A (en) * | 1899-02-14 | Adjustable stool | ||
US659532A (en) * | 1900-02-23 | 1900-10-09 | Henry S Jordan | Adjustable table. |
US750577A (en) * | 1904-01-26 | Self-leveling furniture | ||
US1194551A (en) * | 1916-08-15 | Assiotob | ||
US1429979A (en) * | 1921-12-31 | 1922-09-26 | Otto C Spanenberg | Pivotal spring seat |
US2048148A (en) * | 1936-07-21 | Tilting and swivel chair | ||
US2571443A (en) * | 1950-08-04 | 1951-10-16 | Kenneth F Hair | Adjustable seat mount |
US2719571A (en) * | 1952-07-01 | 1955-10-04 | George O Taylor | Rotatable stool convertible to nonrotatable |
US2808828A (en) * | 1955-01-10 | 1957-10-08 | Rubin Joseph Salem | Rocking bed |
US2920685A (en) * | 1957-05-29 | 1960-01-12 | Anna E Trebilcock | Infant's swivel chair |
US3975051A (en) * | 1976-03-08 | 1976-08-17 | Ballagh Robert V | Orthopedic chair |
US4099697A (en) * | 1975-10-02 | 1978-07-11 | Alfred Von Schuckmann | Tilting post supported seat biased to an upright position |
US4214790A (en) * | 1979-01-25 | 1980-07-29 | Sieber Walter P | Orthopedic reclining chair |
US4236752A (en) * | 1979-05-04 | 1980-12-02 | Hoover Universal, Inc. | Rocker swivel assembly for chairs |
US4295683A (en) * | 1979-07-11 | 1981-10-20 | Dubbink David T | Orthopedic chair |
USRE31092E (en) * | 1979-01-25 | 1982-11-30 | Inverchair Inc. | Orthopedic reclining chair |
US4362334A (en) * | 1980-10-14 | 1982-12-07 | Accu-Back, Inc. | Portable folding orthopedic seat |
US4605334A (en) * | 1982-11-17 | 1986-08-12 | Ari Associates, Inc. | Linkage mechanism for coupling two movable members |
US4647066A (en) * | 1985-09-09 | 1987-03-03 | Walton Edward J | Orthopedic chair |
US4659053A (en) * | 1985-10-25 | 1987-04-21 | Holley Edwin S | Tiltable mount |
USD291155S (en) * | 1985-01-30 | 1987-08-04 | Roger Wertheimer | Orthopedic chair |
US4778217A (en) * | 1987-02-17 | 1988-10-18 | Lane Bruce E | Orthopedic chair |
US4793652A (en) * | 1987-08-11 | 1988-12-27 | Arbutus Society For Children | Orthopaedic seating device |
US4807841A (en) * | 1988-03-22 | 1989-02-28 | Serge Abend | Omnidirectionally tilting and swivelling support mechanism for chairs or the like |
US4824169A (en) * | 1988-02-25 | 1989-04-25 | Jarrell Loyd E | Orthopedic seat |
US4872223A (en) * | 1985-09-26 | 1989-10-10 | Baird Lincoln F | Orthopedic chair |
US4887865A (en) * | 1988-11-08 | 1989-12-19 | Daniel Dawidzon | Orthopedic seat and backrest combination |
US4907303A (en) * | 1985-09-26 | 1990-03-13 | Baird Lincoln F | Orthopedic chair |
USD307221S (en) * | 1987-03-02 | 1990-04-17 | Mudge William E | Orthopedic chair seat |
US4974904A (en) * | 1989-10-23 | 1990-12-04 | Phillips E Lakin | Rocking chair apparatus |
US5022708A (en) * | 1989-11-16 | 1991-06-11 | Creative Presentations, Inc. | Mechanical seat apparatus for simulating motion |
US5044587A (en) * | 1989-04-25 | 1991-09-03 | Marpal Ag | Ergonomic seat |
US5297850A (en) * | 1991-08-16 | 1994-03-29 | Guleserian Armen D | Orthopedic lounge chair |
US5383709A (en) * | 1992-12-03 | 1995-01-24 | Zoetech, Inc. | Orthopedic chair with forwardly and rearwardly inclined positions |
US5409295A (en) * | 1993-05-25 | 1995-04-25 | Omniflex Specialties | Omnidirectional tilting mechanism |
US5494332A (en) * | 1993-05-19 | 1996-02-27 | Daniel; Machfud | Chair with orthopedic back support |
US5590930A (en) * | 1992-03-27 | 1997-01-07 | Gloeckl; Josef | Active dynamic seat |
US5690389A (en) * | 1996-09-09 | 1997-11-25 | Ekman; June | Pneumatic, ball-shaped chair |
US5728049A (en) * | 1996-07-10 | 1998-03-17 | Alberts; Susan | Therapeutic seating apparatus |
US5735571A (en) * | 1996-03-04 | 1998-04-07 | Colondona; Alexander Vincent | Orthopedic beach and relaxing chair |
US5863282A (en) * | 1997-01-13 | 1999-01-26 | Soraya F. Moossun | Therapeutic and orthopedic leg rest system for desks |
US5887951A (en) * | 1995-09-15 | 1999-03-30 | Willingham; W. Preston | Orthopedic seating orthosis for correcting posture and restricting gluteal spreading |
US6059365A (en) * | 1997-11-28 | 2000-05-09 | Diamond; Penelope J. | Orthopedic lounge chair |
US6123390A (en) * | 1998-03-09 | 2000-09-26 | Greenwald; Louis A. | Orthopedic chair |
US6159172A (en) * | 1995-08-25 | 2000-12-12 | Sand Therapeutic, Inc. | Orthopedic seat with inflatable cells |
US6176548B1 (en) * | 1998-10-23 | 2001-01-23 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
US6209958B1 (en) * | 1998-10-23 | 2001-04-03 | Haworth, Inc. | Universal tilt mechanism for a chair |
US20020043846A1 (en) * | 2000-10-12 | 2002-04-18 | Vitra Patente Ag | Arrangement for bearing for a seat |
US6520578B1 (en) * | 2000-05-18 | 2003-02-18 | Erik Jospa | Labor chair |
US6702388B1 (en) * | 2003-06-04 | 2004-03-09 | Ciber Chiu | Ball chair with a securing device |
US6832817B1 (en) * | 2004-02-19 | 2004-12-21 | Ciber Chiu | Ball chair |
US6863017B2 (en) * | 2003-03-14 | 2005-03-08 | David Charles | Safety seat for a marine craft or other vehicle |
US20050173952A1 (en) * | 2002-05-16 | 2005-08-11 | Van Der Laan Eric A. | Chair with means for controlling a cursor |
US7044558B2 (en) * | 2003-06-04 | 2006-05-16 | Ciber Chiu | Ball chair with a retaining device |
US7044542B2 (en) * | 2003-06-02 | 2006-05-16 | Armond Muscat | Bicycle seat |
US7063386B2 (en) * | 2003-12-15 | 2006-06-20 | Be Aerospace, Inc. | Passenger seat with tilting seat bottom |
US7100983B1 (en) * | 2004-12-09 | 2006-09-05 | Gant Richard A | Lumbar flexing seating apparatus |
US7547067B2 (en) * | 2004-12-01 | 2009-06-16 | Keilhauer (Partnership) | Tilt and swivel chair and mechanism therefor |
US20090230743A1 (en) * | 2007-12-18 | 2009-09-17 | Afrooz Derakhshan | Rehabilative exercising chair |
US20090261641A1 (en) * | 2008-04-18 | 2009-10-22 | Dickie Robert G | Hydraulic adjustable seat |
US7789463B2 (en) * | 2006-03-16 | 2010-09-07 | Sung Gil Gang | Chair which is used in waist enhancement |
US7938489B2 (en) * | 2009-04-15 | 2011-05-10 | Joseph Nazari | Swivel and reclining chair |
US8029060B2 (en) * | 2006-10-04 | 2011-10-04 | Formway Furniture Limited | Chair |
-
2010
- 2010-04-13 US US12/759,446 patent/US8231175B2/en active Active
Patent Citations (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US750577A (en) * | 1904-01-26 | Self-leveling furniture | ||
US2048148A (en) * | 1936-07-21 | Tilting and swivel chair | ||
US605527A (en) * | 1898-06-14 | Robert e | ||
US612580A (en) * | 1898-10-18 | Chair | ||
US619596A (en) * | 1899-02-14 | Adjustable stool | ||
US468398A (en) * | 1892-02-09 | Saddle for bicycles | ||
US1194551A (en) * | 1916-08-15 | Assiotob | ||
US30706A (en) * | 1860-11-20 | van vlbck | ||
US659532A (en) * | 1900-02-23 | 1900-10-09 | Henry S Jordan | Adjustable table. |
US1429979A (en) * | 1921-12-31 | 1922-09-26 | Otto C Spanenberg | Pivotal spring seat |
US2571443A (en) * | 1950-08-04 | 1951-10-16 | Kenneth F Hair | Adjustable seat mount |
US2719571A (en) * | 1952-07-01 | 1955-10-04 | George O Taylor | Rotatable stool convertible to nonrotatable |
US2808828A (en) * | 1955-01-10 | 1957-10-08 | Rubin Joseph Salem | Rocking bed |
US2920685A (en) * | 1957-05-29 | 1960-01-12 | Anna E Trebilcock | Infant's swivel chair |
US4099697A (en) * | 1975-10-02 | 1978-07-11 | Alfred Von Schuckmann | Tilting post supported seat biased to an upright position |
US3975051A (en) * | 1976-03-08 | 1976-08-17 | Ballagh Robert V | Orthopedic chair |
US4214790A (en) * | 1979-01-25 | 1980-07-29 | Sieber Walter P | Orthopedic reclining chair |
USRE31092E (en) * | 1979-01-25 | 1982-11-30 | Inverchair Inc. | Orthopedic reclining chair |
US4236752A (en) * | 1979-05-04 | 1980-12-02 | Hoover Universal, Inc. | Rocker swivel assembly for chairs |
US4295683A (en) * | 1979-07-11 | 1981-10-20 | Dubbink David T | Orthopedic chair |
US4362334A (en) * | 1980-10-14 | 1982-12-07 | Accu-Back, Inc. | Portable folding orthopedic seat |
US4605334A (en) * | 1982-11-17 | 1986-08-12 | Ari Associates, Inc. | Linkage mechanism for coupling two movable members |
USD291155S (en) * | 1985-01-30 | 1987-08-04 | Roger Wertheimer | Orthopedic chair |
US4647066A (en) * | 1985-09-09 | 1987-03-03 | Walton Edward J | Orthopedic chair |
US4872223A (en) * | 1985-09-26 | 1989-10-10 | Baird Lincoln F | Orthopedic chair |
US4907303A (en) * | 1985-09-26 | 1990-03-13 | Baird Lincoln F | Orthopedic chair |
US4659053A (en) * | 1985-10-25 | 1987-04-21 | Holley Edwin S | Tiltable mount |
US4778217A (en) * | 1987-02-17 | 1988-10-18 | Lane Bruce E | Orthopedic chair |
USD307221S (en) * | 1987-03-02 | 1990-04-17 | Mudge William E | Orthopedic chair seat |
US4793652A (en) * | 1987-08-11 | 1988-12-27 | Arbutus Society For Children | Orthopaedic seating device |
US4824169A (en) * | 1988-02-25 | 1989-04-25 | Jarrell Loyd E | Orthopedic seat |
US4807841A (en) * | 1988-03-22 | 1989-02-28 | Serge Abend | Omnidirectionally tilting and swivelling support mechanism for chairs or the like |
US4887865A (en) * | 1988-11-08 | 1989-12-19 | Daniel Dawidzon | Orthopedic seat and backrest combination |
US5044587A (en) * | 1989-04-25 | 1991-09-03 | Marpal Ag | Ergonomic seat |
US4974904A (en) * | 1989-10-23 | 1990-12-04 | Phillips E Lakin | Rocking chair apparatus |
US5022708A (en) * | 1989-11-16 | 1991-06-11 | Creative Presentations, Inc. | Mechanical seat apparatus for simulating motion |
US5297850A (en) * | 1991-08-16 | 1994-03-29 | Guleserian Armen D | Orthopedic lounge chair |
US5590930A (en) * | 1992-03-27 | 1997-01-07 | Gloeckl; Josef | Active dynamic seat |
US5383709A (en) * | 1992-12-03 | 1995-01-24 | Zoetech, Inc. | Orthopedic chair with forwardly and rearwardly inclined positions |
US5494332A (en) * | 1993-05-19 | 1996-02-27 | Daniel; Machfud | Chair with orthopedic back support |
US5409295A (en) * | 1993-05-25 | 1995-04-25 | Omniflex Specialties | Omnidirectional tilting mechanism |
US6159172A (en) * | 1995-08-25 | 2000-12-12 | Sand Therapeutic, Inc. | Orthopedic seat with inflatable cells |
US5887951A (en) * | 1995-09-15 | 1999-03-30 | Willingham; W. Preston | Orthopedic seating orthosis for correcting posture and restricting gluteal spreading |
US5735571A (en) * | 1996-03-04 | 1998-04-07 | Colondona; Alexander Vincent | Orthopedic beach and relaxing chair |
US5728049A (en) * | 1996-07-10 | 1998-03-17 | Alberts; Susan | Therapeutic seating apparatus |
US5690389A (en) * | 1996-09-09 | 1997-11-25 | Ekman; June | Pneumatic, ball-shaped chair |
US5863282A (en) * | 1997-01-13 | 1999-01-26 | Soraya F. Moossun | Therapeutic and orthopedic leg rest system for desks |
US6059365A (en) * | 1997-11-28 | 2000-05-09 | Diamond; Penelope J. | Orthopedic lounge chair |
US6123390A (en) * | 1998-03-09 | 2000-09-26 | Greenwald; Louis A. | Orthopedic chair |
US6209958B1 (en) * | 1998-10-23 | 2001-04-03 | Haworth, Inc. | Universal tilt mechanism for a chair |
US6176548B1 (en) * | 1998-10-23 | 2001-01-23 | Haworth, Inc. | Tilt mechanism for chair having adjustable spring characteristics |
US6520578B1 (en) * | 2000-05-18 | 2003-02-18 | Erik Jospa | Labor chair |
US20020043846A1 (en) * | 2000-10-12 | 2002-04-18 | Vitra Patente Ag | Arrangement for bearing for a seat |
US20050173952A1 (en) * | 2002-05-16 | 2005-08-11 | Van Der Laan Eric A. | Chair with means for controlling a cursor |
US6863017B2 (en) * | 2003-03-14 | 2005-03-08 | David Charles | Safety seat for a marine craft or other vehicle |
US7044542B2 (en) * | 2003-06-02 | 2006-05-16 | Armond Muscat | Bicycle seat |
US7044558B2 (en) * | 2003-06-04 | 2006-05-16 | Ciber Chiu | Ball chair with a retaining device |
US6702388B1 (en) * | 2003-06-04 | 2004-03-09 | Ciber Chiu | Ball chair with a securing device |
US7063386B2 (en) * | 2003-12-15 | 2006-06-20 | Be Aerospace, Inc. | Passenger seat with tilting seat bottom |
US6832817B1 (en) * | 2004-02-19 | 2004-12-21 | Ciber Chiu | Ball chair |
US7547067B2 (en) * | 2004-12-01 | 2009-06-16 | Keilhauer (Partnership) | Tilt and swivel chair and mechanism therefor |
US7100983B1 (en) * | 2004-12-09 | 2006-09-05 | Gant Richard A | Lumbar flexing seating apparatus |
US7789463B2 (en) * | 2006-03-16 | 2010-09-07 | Sung Gil Gang | Chair which is used in waist enhancement |
US8029060B2 (en) * | 2006-10-04 | 2011-10-04 | Formway Furniture Limited | Chair |
US20090230743A1 (en) * | 2007-12-18 | 2009-09-17 | Afrooz Derakhshan | Rehabilative exercising chair |
US20090261641A1 (en) * | 2008-04-18 | 2009-10-22 | Dickie Robert G | Hydraulic adjustable seat |
US7938489B2 (en) * | 2009-04-15 | 2011-05-10 | Joseph Nazari | Swivel and reclining chair |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11596243B2 (en) | 2020-06-17 | 2023-03-07 | Dianna Lynn Roberts | Rocking and bouncing chair |
Also Published As
Publication number | Publication date |
---|---|
US8231175B2 (en) | 2012-07-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9101217B2 (en) | Ergonomic Göbelek chair | |
US7478878B2 (en) | Multi-directional, self-righting chair | |
JP6387083B2 (en) | Dynamic pendulum stool | |
US7374517B2 (en) | Portable therapeutic seat exercise apparatus and method | |
US20050179291A1 (en) | Adjustable cross-legged support seat | |
US8231175B2 (en) | Dynamic orthopaedic chair | |
US20090188410A1 (en) | Dynamic seating device | |
US20060097555A1 (en) | Rehabilitation apparatus for lumbosacral spine | |
CN203828460U (en) | Chair having free adjusting function | |
US10806259B2 (en) | Lounge chair with ergonomic features | |
US6655731B2 (en) | Therapeutic chair | |
TWI606799B (en) | A cushion | |
US20180199719A1 (en) | Pivot seat with a non-rolling weighted base | |
US10653919B2 (en) | Fastener for an exercise chair | |
US20100249495A1 (en) | Multiple-width bench with adjustable height and inclination | |
US20190387886A1 (en) | Physical Motion Device | |
CN211092512U (en) | Sitting posture correcting chair | |
CN209915474U (en) | Simple rotary connecting structure suitable for waist support seat | |
AU2005232245B2 (en) | Improved Seat | |
US11484123B2 (en) | Dynamic postural device | |
KR101633223B1 (en) | Acupressure apparatus for backrest of chair and Acupressure chair with the same | |
CN207693281U (en) | A kind of Novel body building chair | |
CN204049003U (en) | Multifunctional pillow | |
CN212593753U (en) | Body-building chair | |
JP3199154U (en) | stool |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
FEPP | Fee payment procedure |
Free format text: 7.5 YR SURCHARGE - LATE PMT W/IN 6 MO, SMALL ENTITY (ORIGINAL EVENT CODE: M2555); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY Year of fee payment: 8 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |